All Specifications Typical At Nominal Line, Full Load and 25˚C Unless Otherwise Noted.
BOT TO M
VIEW
0.300
(7.62)
0.200
(5.08)
0.40
(10.2)
2.00(50.8) 0.80
(20.32)
0.60
(15.2)
1.00
(
25.4
)
0.400
(10.16) (10.16)
0.400 0.40
(10.2)
0.22 min.
(5.6)
0.040
(1.02)
5 4 3
62
1
BOT TO M VIEW
1.80
(45.72)
2.00
(50.8)
0.10
(2.5)
0.600
(15.24)
0.200
(5.08) 0.20
(5.1)
0.400
(10.16)
1.00
(25.4)
0.10
(2.5)
(10.16)
0.400
0.40
(10.2)
0.040
(1.02)
0.22 min.
(5.6)
5 4
3
1 2 6
CASE B
All Specifications Typical At Nominal Line, Full Load and 25˚C Unless Otherwise Noted.
Specifications
INPUT SPECIFICATIONS:
Input Voltage Range......................12V.................................................9-18V
24V...............................................18-36V
48V...............................................36-75V
Under Voltage Iockout..................12Vin Power Up...............................8.8V
12Vin Power Down..........................8.0V
24Vin Power Up................................17V
24Vin Power Down...........................16V
48Vin Power Up................................34V
48Vin Power Down...........................33V
Positive Logic Remote ON/OFF (see note 3 & 4)
Input Filter..............................................................................................Pi Type
OUTPUT SPECIFICATIONS:
Voltage Accuracy........................................................................±1.5% max.
Voltage Balance (Dual)...............................................................±2.0% max.
Transient Response: 75% - 100% Step Load Change
Error Band...........±5% Vout Nominal, Recovery Time........<500us
Ripple & Noise, 20MHz BW (Measured with 0.1µF MLCC)...…... 75mV pk-pk, max.
Temperature Coefficient...............................................................±0.03%/˚C
Line Regulation1.................................Single.................................± 0.2% max.
Dual.................................± 0.5% max.
Load Regulation2.....................Single/Dual.................................± 1.0% max.
Over Voltage Protection................................................Zener or TVS Clamp
Output Short Circuit Protecion....................................................Continuous
External Trim Adj. Range............................Single...................................±10%
GENERAL SPECIFICATIONS:
Efficiency..........................................................................................See Table
Isolation Voltage...........................Input/Output....................1500VDC max.
Isolation Resistance..................................................................10
8
Ohms min.
Switching Frequency.............................................................350KHz, Typical
EMI/RFI.................................................................Six Sided Continuous Shield
Operating Ambient Temperature.........................................-40°C to +85°C
De-Rating, Above 71°C.............................Linearly to Zero Power at 100°C
Case Temperature6.......................................................................100˚C max.
Storage Temperature......................................................... -55°C to + 125°C
Cooling............................................................................Natural Convection
Dimensions..........................2.00 x 1.00 x 0.40 inches(50.8 x 25.4 x 10.2mm)
Case Material.............Black Coated Copper with Non-Conductive Base
Weight..........................................................................................................35g
NOTE:
1. Measured From High Line to Low Line
2. Measured From Full Load to 10% Load
3. Logic Compatibility.............CMOS or Open Collector TTL, ref. to - Vin
Module ON…………………………......>+5.5VDC or Open Circuit
Module OFF……………………….......................................<1.2VDC
4. Suffix"N"to the Model Number with Negative Logic Remote ON/OFF
Module ON…………………………...................….…….....<1.2VDC
Module OFF……………………….........>+5.5VDC or Open Circuit
5. Suffix “S” to the Model Number with Alternative Pin Configuration, Single output models only
6. Maximum case temperature under any operating condition should not exceed 100˚C
EC7B Series Derating Curve
-40
-40
-20 0 8040 60
71
100
20 100
Output Load(%)
120%
100%
80%
60%
40%
20%
0%
Ambient Temperature(˚C)
Natural
Convection
EC7B
EC7B
20 WATT
DC-DC CONVERTERS
S E R I E S
MODEL
NUMBER
EC7B-12D12
EC7B-12D15
EC7B-24S18
EC7B-24S25
EC7B-24S33
EC7B-24S05
EC7B-24S12
EC7B-24S15
EC7B-24D12
EC7B-24D15
EC7B-48S18
EC7B-48S25
EC7B-48S33
EC7B-48S05
EC7B-48S12
EC7B-48S15
EC7B-48D12
EC7B-48D15
9-18 VDC
18-36 VDC
36-75 VDC
±12 VDC
±15 VDC
1.8 VDC
2.5 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
1.8 VDC
2.5 VDC
3.3 VDC
5 VDC
12 VDC
15 VDC
±12 VDC
±15 VDC
42mA
33mA
0mA
0mA
0mA
0mA
0mA
0mA
42mA
33mA
0mA
0mA
0mA
0mA
0mA
0mA
42mA
33mA
±835mA
±670mA
6000mA
6000mA
5000mA
4000mA
1670mA
1330mA
±835mA
±670mA
6000mA
6000mA
5000mA
4000mA
1670mA
1330mA
±835mA
±670mA
40mA
40mA
30mA
30mA
40mA
60mA
20mA
20mA
20mA
20mA
30mA
30mA
30mA
40mA
15mA
15mA
10mA
10mA
1856mA
1861mA
523mA
710mA
764mA
926mA
928mA
924mA
928mA
930mA
262mA
359mA
386mA
463mA
469mA
472mA
464mA
471mA
90
90
86
88
90
90
90
90
90
90
86
87
89
90
89
88
90
89
2" x 1"
2" x 1"
2" x 1"
% EFF. SIZE
INPUT
VOLTAGE
OUTPUT CURRENT INPUT CURRENT
NO LOAD FULL LOAD
MIN. MAX.
OUTPUT
VOLTAGE
NOTE: 1. Nominal Input Voltage 12, 24 or 48 VDC
1
2
3
4
5
6
+V Input
-V Input
+V Output
Trim
-V Output
Remote ON/OFF
+V Input
-V Input
+V Output
Common
-V Output
PIN CONNECTION
Pin Single Output Dual Output
All Dimensions In Inches(mm)
Tolerance Inches: .xx= ±.04, .xxx= ±.010
Millimeters: .xx= ±1.0, .xxx= ±0.25
STANDARD PIN
CONFIGURATION
SUFFIX"S" PIN
CONFIGURATION
-Vout
+Vout
TRIM 10K ohms
TRIMPOT
-Vout
TRIM UP
TRIM
TRIM DOWN
+Vout
External Output Trimming
Output may optionally be externally trimmed (±10%) with a fixed resistor
or an external trimpot as shown.
• 20W Isolated Output
• 2" x 1" Case
• Regulated Outputs
• Efficiency to 90%
Features
• Pi Input Filter
• Continuous Short Circuit Protection
• Remote On/Off Control
